Andre D, Baumjohann W. Joint two-dimensional observations of ground magnetic and ionospheric electric fields associated with auroral currents. 5. Current system associated with eastward drifting omega bands. J Geophys [Internet]. 1981Oct.22 [cited 2025Oct.9];50(1):194-01. Available from: https://journal.geophysicsjournal.com/JofG/article/view/201